Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, last 30 days

8X8, INC. 43

NEW CINGULAR WIRELESS PCS, LLC - DC 26

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 22

ONVOY, LLC - CA 19

New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
2016-10-14	873-492	not yet reported which blocks →	Bell Canada	8050	Trois-Rivieres	—
2016-10-14	873-496	not yet reported which blocks →	Bell Canada	8050	Shawinigan	—
2016-10-14	873-633	not yet reported which blocks →	Bell Canada	8050	Victoriaville	—
2016-10-14	873-929	not yet reported which blocks →	Bell Canada	8050	Sherbrooke	—
2016-10-14	873-935	not yet reported which blocks →	Bell Canada	8050	Magog	—
2016-10-14	913-320	0–9 XXXwhole prefix which blocks →	PEERLESS NETWORK OF KANSAS, LLC - KS	018H	KANSASCITY	KS
2016-10-14	984-237	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	WAKEFOREST	NC
2016-10-13	518-905	0–9 XXXwhole prefix which blocks →	TELXMEDIA, INC. - NY	744H	FTCOVINGTN	NY
2016-10-13	843-698	0–9 XXXall 10 · 3 holders which blocks →	SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC	527H	EASTCONWAY	SC
2016-10-13	843-996	0–9 XXXall 10 · 7 holders which blocks →	AT&T ENTERPRISES, LLC	516C	CHARLESTON	SC
2016-10-13	873-501	not yet reported which blocks →	Iristel Inc.	154E	Puvirnituk	—
2016-10-13	873-502	not yet reported which blocks →	Iristel Inc.	154E	Inukjuak	—
2016-10-12	470-350	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	BUFORD	GA
2016-10-12	548-201	not yet reported which blocks →	Bell Canada	8051	Chatham	—
2016-10-12	548-202	not yet reported which blocks →	Bell Canada	8051	Clinton	—
2016-10-12	548-203	not yet reported which blocks →	Bell Canada	8051	Sarnia	—
2016-10-12	548-204	not yet reported which blocks →	Bell Canada	8051	Windsor	—
2016-10-12	548-205	not yet reported which blocks →	Bell Canada	8051	St. Thomas	—
2016-10-12	548-206	not yet reported which blocks →	Bell Canada	8051	London	—
2016-10-12	548-207	not yet reported which blocks →	Bell Canada	8051	Woodstock	—
2016-10-12	548-208	not yet reported which blocks →	Bell Canada	8051	Owen Sound	—
2016-10-12	548-209	not yet reported which blocks →	Bell Canada	8051	Guelph	—
2016-10-12	548-210	not yet reported which blocks →	Bell Canada	8051	Brantford	—
2016-10-12	548-212	not yet reported which blocks →	Bell Canada	8051	Kitchener-Waterloo	—
2016-10-12	548-213	not yet reported which blocks →	Bell Canada	8051	Orangeville	—
2016-10-12	548-214	not yet reported which blocks →	Bell Canada	8051	Simcoe	—
2016-10-12	548-215	not yet reported which blocks →	Bell Canada	8051	Stratford	—
2016-10-12	616-265	0–9 XXXall 10 · 5 holders which blocks →	TELNET WORLDWIDE, INC.	817J	GRAND RPDS	MI
2016-10-12	706-572	0–9 XXXwhole prefix which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	COMMERCE	GA
2016-10-12	731-628	0–9 XXXall 10 · 6 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	NEWBERN	TN
2016-10-12	772-281	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	PTST LUCIE	FL
2016-10-12	786-914	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	MIAMI	FL
2016-10-12	786-915	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - FL	8300	MIAMI	FL
2016-10-12	860-914	0XXX1XXX2XXX5XXX7XXX8XXX · 5 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - CT	6624	NEWBRITAIN	CT
2016-10-12	901-707	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TN	114F	MEMPHIS	TN
2016-10-12	954-395	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	FTLAUDERDL	FL
2016-10-11	236-886	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Vancouver	—
2016-10-11	236-889	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Vancouver	—
2016-10-11	346-779	0–9 XXXwhole prefix which blocks →	METROPCS, INC.	5562	SUGAR LAND	TX
2016-10-11	412-676	0–9 XXXall 10 · 3 holders which blocks →	PAETEC ITEL, LLC	829J	PTTSBGZON1	PA
2016-10-11	431-990	not yet reported which blocks →	Fido Solutions Inc.	5643	Winnipeg	—
2016-10-11	442-210	0XXX1XXX2XXX3XXX7XXX9XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	BIG PINE	CA
2016-10-11	480-509	0–9 XXXall 10 · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - AZ	7217	PHOENIX	AZ
2016-10-11	650-608	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SNFC JUNPR	CA
2016-10-11	737-240	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	GEORGETOWN	TX
2016-10-11	747-275	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	AGOURA	CA
2016-10-11	951-417	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - CA	649C	MURRIETA	CA
2016-10-10	202-883	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	WSHNGTNZN1	DC
2016-10-10	442-230	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	BRAWLEY	CA
2016-10-10	470-352	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA	6540	ATLANTA	GA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.